Characters played by John Mills
Prof. Bernard Quatermass
Characters played by Simon MacCorkindale
Joe Kapp
Characters played by Ralph Arliss
Kickalong
Characters played by Paul Rosebury
Caraway
Characters played by Jane Bertish
Bee
Characters played by Toyah Willcox
Sal
Characters played by Rebecca Saire
Hettie Carlson
Characters played by Tony Sibbald
Chuck Marshall
Characters played by Barbara Kellerman
Clare Kapp
Characters played by Margaret Tyzack
Annie Morgan
Characters played by Brewster Mason
Gurov
Characters played by Bruce Purchase
Tommy Roach
Characters played by Annabelle Lanyon
Isabel
Characters played by David Yip
Frank Chen
Characters played by Neil Stacy
Toby Gough
Characters played by Brenda Fricker
Alison Thorpe
Characters played by Elsie Randolph
Woman Minister
Characters played by Larry Noble
Jack
Characters played by Gretchen Franklin
Edna
Characters played by James Ottaway
Arthur
Characters played by Clare Ruane
Jane
Characters played by Donald Eccles
Chisholm
Characters played by Sophie Kind
Kapp Child
Sara
Kapp Child
Characters played by Joanna Joseph
Debbie
Kapp Child
Kapp Child
Characters played by Declan Mulholland
Security Guard
Characters played by Tudor Davies
TV Director
Characters played by Kevin Stoney
Prime Minister
Characters played by Joy Harington
TV Producer
Characters played by David Ashford
David Hatherley
Characters played by Barbara Keogh
Make-up Lady
Characters played by Ishaq Bux
Misru
Characters played by James Leith
1st Pay Cop
Characters played by Jan Murzynowski
Russian Astronaut
Characters played by John Dunbar
Electronics Expert
Characters played by Luke Hanson
Pay Police Captain
Characters played by John Richmond
Lt. General
Characters played by Charles Bolton
1st Mugger
Characters played by Christopher Driscoll
2nd Mugger
Characters played by Charles Lamb
Orderly
Characters played by Brian Croucher
Pay Police Lt.
Characters played by Stewart Harwood
Taxi Driver
Characters played by Rita Webb
Charm Seller
Characters played by Trevor Lawrence
Catskin Man
Characters played by Kathleen St. John
Winnie
Characters played by Frederick Radley
Medicine Man
Characters played by Beatrice Shaw
Susie
Characters played by Ian Price
Captain Torrance
Characters played by Claire Lewis
Planet People
Characters played by Chris Quinten
Soldier
Characters played by Paul Easom
Planet People
Characters played by Chris Blackwell
Dancer
Characters played by Kevin Omard
Planet People
Characters played by Jackie Cowper
Planet People
Characters played by Caroline Haigh
Dancer
Characters played by David Lynch
Planet People
Characters played by Wendy Barrie
Dancer
Characters played by Alison Dowling
Planet People
Characters played by Bert Francis
Dancer
Characters played by Cassie McFarlane
Planet People
Characters played by Brian Kuhn
Dancer
Characters played by Domini Winter
Dancer
Characters played by Lennox Milne
Woman Researcher
Characters played by S. Newton Anderson
Gill
Characters played by Carla D. Clark
Diane
Characters played by Fred Wood
Car Passenger
Protest Observer
Characters played by Guy Standeven
ICU Doctor
Characters played by Tony Clarkin
Machine Gun Rebel
Characters played by John Tatham
Elderly Soldier
Characters played by Walter Henry
Elderly Soldier
Characters played by Alan Meacham
Armoured Car Driver